encyclopedia
n. countablen. a book or set of books that gives information on many different subjects. It is usually organized in alphabetical order so you can find facts easily.
n. a comprehensive reference work containing articles on a wide range of subjects or on numerous aspects of a particular field. Traditionally arranged alphabetically by subject name.
I looked up the history of Rome in the encyclopedia.
Before the internet became common, most families kept a printed encyclopedia on their bookshelves for school research.
The digital age has largely replaced multi-volume printed encyclopedias with collaborative online platforms that can be updated in real time as new information emerges.
Etymology tree ▲ Proto-Indo-European *h₁en- Proto-Indo-European *h₁en- Proto-Indo-European *h₁én Ancient Greek ἐν (en) Ancient Greek ἐν- (en-) Proto-Indo-European *kʷel- Proto-Indo-European *kʷékʷlos Ancient Greek κύκλος (kúklos) Proto-Indo-European *-yósder. Ancient Greek -ιος (-ios) Ancient Greek ἐγκύκλῐος (enkúklĭos) Proto-Indo-European *peh₂w-der. Proto-Hellenic *pā́wits Ancient Greek παῖς (paîs) Ancient Greek -εύς (-eús) Ancient Greek -εύω (-eúō) Ancient Greek παιδεύω (paideúō) Proto-Indo-European *-h₂ Proto-Indo-European *-éh₂ Proto-Indo-European *-i-eh₂ Proto-Hellenic *-íā Ancient Greek -ία (-ía) Ancient Greek παιδείᾱ (paideíā) Ancient Greek ἐγκύκλιος παιδείᾱ (enkúklios paideíā)bor. New Latin encyclopaedīalbor. English encyclopedia Borrowed from New Latin encyclopēdīa, encyclopaedīa (“general education”), a univerbated form of Koine Greek ἐγκύκλιος παιδείᾱ (enkúklios paideíā, “education in the circle of arts and sciences”), from Ancient Greek ἐγκύκλιος (enkúklios, “circular”) + παιδείᾱ (paideíā, “childrearing; education”) (q.v.). Nearly all modern English usage of the word was influenced by the scope and format of the French Encyclopédie by Diderot et al. (see quotation).
Often used with the preposition 'on' or 'of' to specify a subject, such as an 'encyclopedia of plants'.